26660643614 has 16 divisors (see below), whose sum is σ = 45523313280. Its totient is φ = 11591583960.

The previous prime is 26660643461. The next prime is 26660643619. The reversal of 26660643614 is 41634606662.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26660643619) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26344004 + ... + 26345015.

It is an arithmetic number, because the mean of its divisors is an integer number (2845207080).

Almost surely, 2^26660643614 is an apocalyptic number.

26660643614 is a deficient number, since it is larger than the sum of its proper divisors (18862669666).

26660643614 is a wasteful number, since it uses less digits than its factorization.

26660643614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52689055.

The product of its (nonzero) digits is 746496, while the sum is 44.

The spelling of 26660643614 in words is "twenty-six billion, six hundred sixty million, six hundred forty-three thousand, six hundred fourteen".